US 2020/0132210 A1Published application

Solenoid valve

AssigneeFlushtech Corporation

InventorSUNG AN LAI

Life of this patent

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Abstract

A solenoid valve includes: a valve body with a valve seat therein; a sealing assembly provided on the valve seat; and a plunger to be driven by a solenoid to make the sealing assembly open or close the valve seat. The solenoid valve is characterized in that: a casing is coupled to the valve body and has an outer bottom portion protrudingly provided with a guide post; a flow channel is formed in the guide post; the sealing assembly includes a rigid disk, a flexible diaphragm, whose bottom side faces an orifice of the valve seat, and a central opening, in which the guide post is partially fitted; and the plunger has a bottom portion facing the inlet of the flow channel. With the guide post being stationary and linking the plunger and the sealing assembly, the solenoid valve features reduced power consumption and a low chance of solenoid failure.

Claims10

Dependent claims

A solenoid valve, comprising:

a valve body having an inlet port, an outlet port, and a valve seat formed between the two ports;
a sealing assembly provided on the valve seat;
and a plunger configured to be driven toward or away from a top portion of the sealing assembly by a solenoid in order to make the sealing assembly close or open the valve seat;
the solenoid valve being characterized in that:
a casing is coupled to the valve body, the casing has an outer bottom portion protrudingly provided with a guide post, and the guide post is formed therein with a flow channel;
the sealing assembly comprises a rigid disk and a flexible diaphragm, the flexible diaphragm is coupled to the rigid disk and has a bottom side facing an orifice of the valve seat of the valve body, the guide post of the casing has a portion fitted in a central opening of the sealing assembly, and the sealing assembly is vertically movable along an axis defined by the guide post;
and
the plunger has a bottom portion facing an inlet of the flow channel of the guide post of the casing.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/214,368Filed 10 Dec 2018
Priority: TW 10721452125 Oct 2018
Published: 30 Apr 2020
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

F16K 31/0675
Using a magnet , e.g. diaphragm valves, cutting off by means of a liquid: electromagnet aspects, e.g. electric supply therefor
F16K 27/0236
Of lift valves: diaphragm cut-off apparatus
F16K 27/029
Of lift valves: electromagnetically actuated valves
F16K 31/0693
Braking, pressure equilibration, shock absorbing: pressure equilibration of the armature

Family

No related US applications are recorded in the indexed filing history.

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